Relative clause + preposition

Relative clauses with two-case prepositions

You already know relative clauses beginning with a preposition. These prepositions determine the Kasus of the relative pronoun. If the preposition at the beginning of a relative clause is a two-case preposition of place, you need to use a rule that you already know: If the preposition and the following relative pronoun are responding to the question Wo ...?, the relative pronoun is in the dative. If they are answering the question Wohin ...?, you use the relative pronoun in the accusative.